Histopathological examination of selected internal organs of pastel minks in relation to oxidative state parameters.

摘要

The aim of the study was histopathological characteristics of mink females showing a tendency to decrease body condition in a perinatal period against a background of selected parameters of antioxidant state. The minks were divided into two groups according to body condition scoring system (BCS). The blood was collected twice: after weaning and at the end of the production cycle. The serum activity of oxidative state enzymes was determined. Anatomic and histopathological examinations were conducted after the production cycle. Samples of the liver, kidneys, small intestine, and ovaries were fixed in 10% buffered formalin and stained with haematoxylin-eosin and Sudan IV. The histopathological examinations revealed hyperaemia of the liver and kidneys, with large content of blood in the capillary and central vessels of obese females. The kidney structure was normal in animals of experimental group. On the other hand, kidneys of control group animals showed degenerative changes in the epithelial cells of the tubules of the excretory part, especially of the proximal tubules. Against the background of the obtained results, it should be stated that lower activities of selected enzymes with anatomical and histopathological changes were obtained in the animals with worse body condition.